Refs #7094 SphericalY for TOPAZ and MANDI
Refs #7139 Add radii of the major axis of the ellipsoidal peak and bkg
Append newline at QtSignalChannel level rather than MessageDisplay

The Poco log stream emits the log messages when it receives a newline but
doesn't send along newlines. However, printing from Python scripts does
produce newline characters so in order not to double-count them it makes
most sense to simply emit a newline in the SignalChannel and let
everything listening to it simply insert the exact text received.

Refs #7152
Fix memory leak when plotting sample logs using running+period filter.

If the combined filter ended up being invalid then the TimeSeriesProperty
was returning the size as a value in a vector that had been previously
cleared so it was returning whatever rubbish happened to be in memory.
Refs #7173
Copy vertical axis. Refs #3393

In the unit test for ConvertTo point data check the vertical axis
Added checks for vertical axis values. Refs #3393